Fluid-gage.



- for its. object the production. of n gege that enfiinnT fonnionf i/ionnie iiniinin, on MALDEN, nneenonneiime, Assi/@Noe on oNlfHALF ioenoee-e W. GREGORY, on BOSTON, MAeeACHUeEiTe no. semelle.

Appleman naa mmm-y 2e', 190e. seinen, 302,418.

To [1J-7 mlm/zt if'y may awww-1L:

Beit known that I, Moenia; MARTIN, n citizen of tlm United States,- residing in Meiden, county of Middlesex, and State of Messe ehnsetts, have invented en Improvement in Fluid-Gages, of whioh the following descrip? tion,v inv connection with theeoeonipanying dim'ings, is a specification, like ehamoteis on 'the dife-Wings repiesentinglike parte. l This invention relating to fluid-'gages has Ina Y be mede to show et any distance *ironia ten the depth or quantity of 'fluid theieln.

v in accordance 'with my invention I. employ,

with n tonie containing ii'uid the quantity 'of Wlnoii it is desired to obeeive or eeoertein, a. tenlereservoir' and en 'nidiontingweservo1i`,

and witli these twol Ifeseivoi's ieniplo'); meensr.

l whereby I may trensiei fluid fijoin the tank ."von: into the indientii'ig-reservoir. xne ititnkjindiootingwesefvoir will be so i proportioned with relation to the tenia-reset'-` Voir endlite oc'ijnjnn'inioeting 'tube that when the-fl contents of .the Ltn nk-ieseiifoii', which veiiee es the depth ofA the liquid in the tenk "varies, is'zteni'porerily transferred to the indi-A cating-reservoirvin making e test to indionte the depth of the fluid in 'thetnnk the iev-e1 ofthe liquid .eenling into the indioeftingwesei' Voiif will 'by its 'iising'to cept-'ein dolinod lin es of the 'seele 'or ii'ide'xotlie indi zagting-ieeervon snow the depth ofliquidin the tank, or,

in'otliei Wo'idS, -tl1e capacity of the indieetA .ingeieseifvon'fwith relation to the capacity of' the teni; and olt the tnnkreservoir, -in which etende e Very smell 'fine eolninn of 1" uid, will be so proportioned-thatby' tiensferring the column of, fluid from thev tank-reservoir into the indicating-reservoir; which' has proper4 eoele-Inerks,it may ive-Seen Whitt is the de th ofthe fluid in the tank end wliether ful oiv three-tontlie, one-helij,"1o1 'one-'fourth full. The i'etio of tlie capacities oftheise'reservoirs niey .very is may be desired., and when. the fluid 'which enters the lindioating-1'eeervoir lies been observed it'will .be rijetnrned to the tenleieseivoir in eomrnnnietonwith the mank., .n

The transfer of fluid i'foin'oie to the other reservoir is effected' through change in etmospherie pressue/prodneedineny nsnei manner or, es will foe described, 'preferably by e pump ofeoine sort that Wili either ex .iieuet the; nein the indieetingaeservoir Specification of Lettere Patent.

Heimen@ E;

net-'weie Juize. e1, ieee.

.tiiet tile :finid iney rush thefein from the tenleeservoir or by 'eil-pressure on the top o'f'iinid. 'in the tank-reservoir, which Wiil force *'oiixj I l Fi'gnre' i ehowe part of v@tank containing my novel tenk-1nd1o'etoi'-'coupled- With my tlieliuid ,therefom into; the indioetingerese novel indicating-lieselfvoii; Fig. 2 is e longi tndinel section through theindioeting-i'eser Voir and. pump." "Fg. Sie a top View oi Fig. 2. "Figf is e detailV showingfevelve in the low r end of the tank-ieserfoinj Fig." 4 shows the giase cover of -theindieetingleser- `voii", one-l1eif "of whioh. is shown' es, ground, that it rn'ny be' marked 01j lined. Fig. 5 is e View of modification wherein the'pum ie seperated from theiindiqetingreeei'Voir,

yet enothef nic'uiioetion,v and liig. -7 ehows e modification of'. the vt@ink-resercvoii 'and irte-.communicating tube. I "zpinfi e e tank Af oi' sued construction within tenlgieseivoir A. (shown ne 'e tube e)v in koon'nnnnieation with the iinid A in the`v tank. The 'teniereseivoir in the ioiin in Win-oliY l neve enosen 'to illustrate my inveni tion (see Fig. l) is suspended from e .leteor Vheed o', sustained by n shonldei of e ne in `i2-soldered to thetenksiid hei in operative position by e t ended ring el. The jtniereseivoir may, however, oe vlooet-eci et any point with relation 'to the 'tank so longf ,es the reservoir is in communication with, the' 'Huid in the tank.' Thetnnlmesei-Voir nos e ooini'nnnieatinq" air-tube b, `shown for oonvenience end eneztpness of construction as lo-v ycated inside the trink-reservoir., (see Figs. l,

4, 5, end 6;) but it maybe looeted alongside said tube a, es shown in Fig.` 7'. A y The outer endof the air-tube b is shown as connectedo'y` one or--moelengths of tnbin wherevei' located.; The indicating-reseyoir. will have e fiindeapeolty ofi suffieient'eize connected tube b to receive Whatever fluid.

- may stand in the tank-reservoir, vthe tube 6,.

and its connections-et en time thatV e test is to beni'ede to ascertain t le deoth of tnidv in thetenk, and the extent to W the indieating-reservoir wiil'be lled et any test ee indicated by the vlevel'of the "fluid entering the indioetinv-reseivoir end lining .up withn .the seele-mardis theieoi' fWill show thedepthy fofi'inid in the tank y with ieletion to thetitnkeresevoir and ite IOP The indienting-reservoirC is composed, as shown, ol a motel casting shaped to forni a chainher c, into which is led. the air-pipe b or a` continuation thereof. Tle casting is threaded at c'l und has e shoulder e, that reeeives a. packing c, and then e glass or other cover c4, which is held in plane h v :L threaded ri ng 0"), screwed onto the threaded Vpart of the cai-sting and Closing the Chamber liquid-tigl'it.

lil" the tanlrA ront-Lining the liquid which is being exhausted in use is circuler in vertieel cross-section, the indienting-ieservoir will also he circular in vertiezil ioss-s0etioii,. and i1" rectangular in vertienl cross-section the indieeting-reservoir mit)V he of si miler shape.

The indimting-reservoir of whatever shape will (fontein :t seele 2, pre'lernhly of Celluloid, (see Fig. 1,) the grade-lines ol which will he separated at proper distances apart to designate n definite depth of liquid, es gnsolene, in the tank, and the highest mark or linel ol' the seele reached hy the proportional fnnount of liq u id trnnsi'erred from the tank-reservoirinto the indienting-ieservoirwill show the depth of the liquid in the lnnli :it the time that the trnnsier is mede. y

The scale shown indiozites lull. tlmeefourths, onedntll', and one-foin'th full, and hetvfeen these points other lines muy he mudo, :is on e, rule, to ini'lieaite sixteenths, thirty-seeonds, or other l'rmztionzil amounts oll depth oilluid in the trink of known @epilee ity.

Should it he desired lo :show gallon-lines, one-hull of the glass Cover c may he ground, es indie/ated in Fig. 4, und hy adding the liquid to the tank one gallon :it it time und nml(- ingu. test in the.imlieuting-reserVoir the level occupied lhy lhe liquid muy he murlied on seid ground hice oil the glass, thus establishing the seule.

The lower end oi' the tnhular tanlvresen voir "1y in communication with the fluid in the tank luis e eontrolled or sluggish inlet D, shown :is :i foot d/ :Lt the lower end of said tnhe, mid e piece el' felt d or other porous nmimisrl, which Will not he ell'eeted h v gesolene :ind through whi 'vh the fluid entering the leiik-reservoir move. sluggishly, sai-id ninternil heing shown :is held between two perforn t ed disks d. l'nstend, however, of the pin'- tieular l'orm el' vontrolled or sluggish inlet' so iur deserilwd I muy use a vulve inside the airA ruhe l), (see Figa. 4.,) sind vulve.eomprising e. snmll rodj, provided :it its upper end wit 1 ai head fl, liuving L loose fit in seid tuhe and ('/zirnving :il its lower end n liutton 5, that es the vulve is rinsed h v sucking iti-r into the '.uhev b will lose promptly the end ol' the l:1nlf-reser\'oir while the [luid in the tank-- reservoir is heing transferred into the indi-V .luis heen trzmsl'erred to the indimitilig-reser- Voir and. exposed to view, the liquidi in the indicatiiig-reservoir will he returned 'ro the teinereservoir, where it will remain muil il is desired to ugnin ineke a1 test for sufficient-.y of fluid in the tank A.

There are several dillerent 'ways in vrhivh the contents ol the tanlli-reservoir nur)Y he transferred to the indionting-reservoir suhstantiztlly instantaneously, and lor this pur-` pose l marke use, es stated, of pressure. 'l`o effect this change in )ressure in the plain adopted in Figs. l und 2, l have extended from tlie,ezisiixg C a pump comprising :i pipe d'5, having :i piston d, provided with nn operative handle di, hy which to move the piston ol' the pump.

TWhen the piston is moved from the pesition Fig. 1, lull lines, into thedotted-line pesition, the :iir is instantly exlmusled l'rom (he ehmnher (f el the indien ting-reservoir und the eonneeted pipes. nntliing n. vzieuum in sind vlniniher, into whieh rushes lluid thon in the tank-reservoir und its connected nir-lube il The fluid in the tznili und surroipiding is tenir-reservoir, owing to the sluggish inlell nr vulve, does not follow into the i:inlg--reserveir lust enough to et ell interfere with exhihil ing through the glass ol" the indientingreservoir the fluid thet wus eonmined in the tuhe u ol the tzinlc-reservoir, seid fluid so i'rnnslirred h'eing n proportional :nnount olI fluid in lhe tank. and ini'liezrting in the indii'utiiig-reser Voir the depth er level ol lluid in the iii-uli A.

When the piston has heen lifted vfor its full stroke and u. test has heen mede, the )iston will he pushed down to return the fluid from the indien tuig-reservoir to the liuid-resmveir. A test muy he umile once every minute, if desired; hut usuulliv e. test mede et one or two hours npiu't will sulliee for :ill purposes.

The piston may he loelied down (seo Fig. hy :i pin on the piston, which mudv enter nn annuler groove in :L segmental projection nt the upper end a of the pump. seid pin entering said groove ns ine piston-rod is turned :txinllv when in its inward position, thus loeking the piston; hut instead ol thry pzntienhn' looking devine referred to l muy employ any other'well-known or snitnhle locking devire.

Vihile l prefer in most instances to use n suelion-pninp for transferring the contents ol" the tenir-reservoir into the indientin, ,{-reservoir, vet it Will he ohvious tlnit n hlnst ol' all generated in any usuul mnnner, ns h v n. foule-pump, may he mede to Contact with th upper side ol' the column oflluid in the nulli-.reservoir sind force the Sinne from snid reservoir into the indieatingsreservoir,' :is l shell hereinafter deserihe, and yet he within the scope of my invention. i

ln Fig, l llnive Shown e small pipe g, that led from the pump-cylinder uhove the piston to the tank, it serving to e( uelize the nirpi'essure on the pisfton. The head is .shown XOO llO

semi-.e y

es lievin e Veitessee of tliet su avilies eir r: r i

in the indicating-reservoir when the piston da is iufits -leweet the tank tlsuc i time passing t ipe g iiito the pumpend through into the indicetigfreservoir. i

"ositien, the eil'm iessuie m rough the h Instead' Qi?Y I'cGripe'cting the pum@v 4directly with the inicatingq'esewoii, es iii Fi `s. l mid 2, it maybe @imaged-es Eig. 5, W reife the pipe h is 'led into 'theteileresei'veir through the'plateloiliead ci.

The fluid in the tanks of, some cere and me l toiiboets is' subjected to presente, air being forced .into the teiil freine pump, end com seguenti? it illlie eppeient when there 1s not need to` supply Ineens i'o' oroilucing .such pressure, and consequently tile pump so fm? increesecl eirqiressure inthe "tenis tiiet .l de

described as' forming a, part ef my Where the tank is Without air-pressure may 4 e oiiiite ted, the usual pump of the ce1* used ici* meis# teiniiw eiifessure in the tank lieifn ell that o 1s necessary. 1

F161 'slioWs mi; ,qee @dented ier use with 'f will be seen that the indicetiiig-eserveir CX is connected by pipe witlitlie pipe E3 in tlie heed a" of the tenlz'eservoir A in sli petitie-- ulmfs 'like the tenibresei'veiit previeiisly dee scribed. The mfiieetmgesem'eii' CX lies added te it a. velve-eesing fit, iieviiig e two- Wey coclg n', one Way, '12, crossingtlie cock axially and the other wey, i3, being lengitu dinelly irren ed end opening into the etmos pliere thi'ofug e hole Min the vsl'vecssing.

5e. to bring tliewey 13 mteopeifetion, smi 1m- The Velvefeesiiig; is vconnected. by e pipe mf with the-tank A, and when the Way op eretiveen' equilibrium of Pi'essuie ineinteined eiicltlielevel of the liquid in the til-nii tankijeservoir is the seme, vmi conse-v queiitly the i1idiceting-eserveiiiis filled only with me. .l y

Tomelie .e test to ascertain the `depth eif fluid inthe tank, the cockV 'n' will lee 'tumesi medietely es the excess of eirfpressure is re* iievecl in tile indice'tingereservoir the sir in. the tank lpessing through the hole Q1 in the tunkqeseivoiii above the levelei"V the 'lluid therein ects en the top oi the .proportional amount of li'd il; thetenltfieseivoir and transfers it very repidlytliiiougli`pipe h2 inte the indieetineieseiveir te be viewed While :masking the vtest' the' etseii manipulating the cock 7L byiienci will Watch foi.' my ineoiixing aire-bubbles end will tlieii immedi- Fetelyeelose the' sock, end the position of tile iiqudvtiiem in. .tlie isilieetingfeseveir emi e Dy-pese a used, and to pifope'ftionslljf eliafiige 1me cac'cveiilw the lii 5liest line tlie seele wiil uidieete tzlie depth of viluicl..

l lieve aimed. te employ e tendard oi tube im* the'tsiiii-Ieservoii', i'vliie'ii oih ceurse l as te be leiigei' er shorter tlie depth oi the teni; varies, end to enable me te employ sii indieeting-resel-vcii of steiialeiil shape and..

Size with sll sizes of tanks i iiielie the elleniljer c oi' the indicating-reserven suilieieiit capacity to sccemiiiodete the longest tube (L- used foi' the tsriibreseiyoii' c'f the largest tziiil jacity .of tlie eliiimbei in the indif ingreserveirl meyepply te seicl olie/miner (seeifig. 2) one ci' more disks i6. rlflieouireiiiiost diei; 0.1:, itmey be, the bottom oi lthe eliziniliei c will support the Celluloid liek orseale 2,. ou which will be merlied on pi'iiteltlie proportional lines oi sci-ile ojtineesuifiuei adopted "to designelte tlie depth er ;g i.'.ai-i1tity el" timid in the tank. These-fiiieesurements are figured proportionally, disks fir@ end the seele l :md they may held in adjusted position in. the cliembei c by e sciew i7. The central passage .or hele through the eiivtu'be l) of the t:mk-i'eseivoii will be smaller than inthe tube c, constituting pei't oi salti teiilereseirveir, :mil A refers-bly i. piece iii tl-ie feet fl of ssi tenli-ieservoi-i s, greater or less nummer of disks 7, eecli having' i hole :intl located ebove the sluggish inlet, said disks ppemtiiig to'leesen the' lluinl epecity of tlie foot. 1i-i gre-eter er less nui'iilie; eitlieseflislis may be employed, eceeiicliiig to the ef the tank with which the device is used.

l believe that i. ein. the iiist to coiiiliiiie en. indiesting-reservoir with' :i tank und e tenis Afluid. in the tank,- tlie iliiid iii thelteiillfi'eseir voi? heilig of tli e seix'iesclcptli :is the .i'iuifi iii the tsiils., the iluifl coming into tlic iiuiieetiiig'- eseiveii sliowii'ig the dept/li osneimzii ei liquidiu the tank with which seni tent. i ei-.'

Voir is in coi'muunieetix)u, sind il (leslie toi clsiiii, bromlly, tliese tive 1^ seivo'i'is'Iii'respecive oi" their particule.; size, shape, er luce- 'sieri-with relation to. eachother will with contents of one e'l seid. reservoirs into the .other 'for the purposes lieielii lesi'zi'lbei' Having fully deseribcil my uiveiition, wliet lcleim es new, sull desire 'to secuie by Let# "es lies` been stetealif Tl'ie, Z have e eentiel lioleg,

lilv

whatever means empleyedto Lieiisler 'tile' reservoir lrom into said indieating-reservoir. and

ind ira tii1g-resertank bears to its total capacity, nnindieatinw eontenta4 of tlie tank-reservoir, part ol" i reservoiii) and means to trannler from the tank reservoir to the indieatinpr reservoir suoli a portion oll the li( uid in the formeras will in tlie latter indieate tlie .quantity of liquid in tlie tank.

l2, in eomliiniition, a fluid-holding tank an indientingaeseivoir, a tank-reservoir @omniunieatingr therewith, said tank-reservoir eonsisting of a tu be eontaining,r a, proportional amount oli llie lluid in the tank in the form of v n, eolumn tlie top ol which is level with tlie ing a'ili llie tinnlvrzuerveir, menus to remove tlie air from said-t lie and with 1t tile eontenta ol sain' aniik-reservoir, part ol tlie latter jl entern said indient'ing-renerxunr, Said nimma j being thereafter operative to return tile eonl tents ol the 1ndwating-renerfoir to tite tanda 5. An indienting-reservoir, a Voir communieating tliernwitli, and a pump to transfer material in the tanlmesorvtxir into said indiratingpreseivttir, and to -dliere.il`tei" return the eontents ol' the indienting-Teservoir to tlm tank-iwervoir.

in indientii1g-reservoir. n apli-reservo eonnnunieating ilierewitli. a pump to transfer material from the tank-reaervoir loeli the pump in its inoperative porci l ion. 7. An lndlentiiig-reservo]r,

a tank, a tanl reservoir onneeted t.lu rewitll, said tank-res` eivoir having e. eontrollalile inlet, and meamA to transfer material man tlie tank-renew(ar into Said indienting-reserwnr.

8. An indieaiing-reservoir. a tank, a tank- I reservoir conneeted tlierewitlu Said tank-reservoir having a` sluggish inlet.,and means to transfer part of tlio eontents olz die [anlireservoir into Said indiea'tingi-reservoir.

il, A, tank, a, tank-reservtir in (-.olnnuiniention therewith, nn indieatiiig-reservoir uomvninnieating with time tanli-reservoir a pump eoperating with said indieatirig-reaervoir, and :in air-pipe leading from l'lie pump above its piston to Elie tank to equalize the air-pressure on the piston of Said pump.

1l). tank, an indieatinga'eservoir havingr a surface that", may be'nmrlied to designate depth of iuid in said tank, n tanl reservoir adapted to be Connect-ed with a tank, a eomnunieation between saidv reservoirs, find means to transfer part of the Contents of tlie tank-reservoir into the indieztting-renerw ir.

l1. A trink, :t tank-reservoir eonununimit! ing therewith and adapted to eontain a porj tion of liquid bearing the same ratio to its total eapaeity as t-lie quantity of liquid m the llink-reset top of the l'luid in the trink, and means to :infer 'lieproportional amount of liquidlin ainle-zesnrvoir into the i1idiexiting-reserw i in' when lle quantity ol liquid in the tank in, zo lie mewured.

lli. Maul?v an indientoneri-Servon; a. pump as,-ioeiated tlxeiewiili and t pipe Connecting: said resermir mid inni; and eondueting the fluid tneretdysaid .mnpwlu'ni 'tuated trani'- ierring lluid from 2 tank into sain' indilatin iweaelfftzir, and ..i".leal'!es returning said fluid tli Y .1an-'li said pipe to the tank.

li. a. lt', an indient ingweserwiir liavinp; a detaelialile idling-disk to gage the eapaeil/y ol' said reaervoir.v eomliined n itli n tanlsreaervoir, sind menne` to tin-maler parl ol` tlle ooninto tlie indient tentL of said tanli-reservoir ing-reservoiin l5. il. tank, a lanlvreservoir havingr n eliaiulas'ed foot provided willi a, Sluggihli inlet, and having iillii\ plat'es to alter the capaeiy ol tlie eliamlier in aid foot, a connected indieating-reservoir. aud means to transler part. ol` the eonents ol said tanleresemmir into aid indifsatingaeservoir.

.l li. Vln apparatus o1" the elass described, an indieatiiig-reservoir havingi a transparent. eover at one aide and provided with an index, said i'eservoir having two duets, one at the upper and the other at' the lower part of said' reservoir, combined with a pump detaelmbly eouneeted with said reservoir, and a pipe leiuling.V from said reservoir to a tank, said pump being adopted tio till and then empty said reservoir.

l?. ln n i iaraitufs of the class described an ICO IOS 

